55924218 has 48 divisors (see below), whose sum is σ = 140063040. Its totient is φ = 15795648.

The previous prime is 55924213. The next prime is 55924229. The reversal of 55924218 is 81242955.

It is not an unprimeable number, because it can be changed into a prime (55924213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8721 + ... + 13707.

It is an arithmetic number, because the mean of its divisors is an integer number (2917980).

Almost surely, 2^55924218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55924218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70031520).

55924218 is an abundant number, since it is smaller than the sum of its proper divisors (84138822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55924218 is a wasteful number, since it uses less digits than its factorization.

55924218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091 (or 5088 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 55924218 is about 7478.2496615184. The cubic root of 55924218 is about 382.4135803738.

The spelling of 55924218 in words is "fifty-five million, nine hundred twenty-four thousand, two hundred eighteen".